Version 2.08.01 from author; defgroup happens in font-lock.el; don't prevent from compiling on emacs 19.34 etc.

1 files changed, 100 insertions, 28 deletions

diff --git a/lisp/lazy-lock.el b/lisp/lazy-lock.el
index 084d797d35a..326683af003 100644
--- a/lisp/lazy-lock.el
+++ b/lisp/lazy-lock.el
@@ -4,7 +4,7 @@
 
 ;; Author: Simon Marshall <simon@gnu.ai.mit.edu>
 ;; Keywords: faces files
-;; Version: 2.08
+;; Version: 2.08.01
 
 ;;; This file is part of GNU Emacs.
 
@@ -193,6 +193,70 @@
 ;; Currently XEmacs does not have the features to support this version of
 ;; lazy-lock.el.  Maybe it will one day.
 
+;; History:
+;;
+;; 1.15--2.00:
+;; - Rewrite for Emacs 19.30 and the features rms added to support lazy-lock.el
+;;   so that it could work correctly and efficiently.
+;; - Many thanks to those who reported bugs, fixed bugs, made suggestions or
+;;   otherwise contributed in the version 1 cycle; Jari Aalto, Kevin Broadey,
+;;   Ulrik Dickow, Bill Dubuque, Bob Glickstein, Boris Goldowsky,
+;;   Jonas Jarnestrom, David Karr, Michael Kifer, Erik Naggum, Rick Sladkey,
+;;   Jim Thompson, Ben Wing, Ilya Zakharevich, and Richard Stallman.
+;; 2.00--2.01:
+;; - Made `lazy-lock-fontify-after-command' always `sit-for' and so redisplay
+;; - Use `buffer-name' not `buffer-live-p' (Bill Dubuque hint)
+;; - Made `lazy-lock-install' do `add-to-list' not `setq' of `current-buffer'
+;; - Made `lazy-lock-fontify-after-install' loop over buffer list
+;; - Made `lazy-lock-arrange-before-change' to arrange `window-end' triggering
+;; - Made `lazy-lock-let-buffer-state' wrap both `befter-change-functions'
+;; - Made `lazy-lock-fontify-region' do `condition-case' (Hyman Rosen report)
+;; 2.01--2.02:
+;; - Use `buffer-live-p' as `buffer-name' can barf (Richard Stanton report)
+;; - Made `lazy-lock-install' set `font-lock-fontified' (Kevin Davidson report)
+;; - Made `lazy-lock-install' add hooks only if needed
+;; - Made `lazy-lock-unstall' add `font-lock-after-change-function' if needed
+;; 2.02--2.03:
+;; - Made `lazy-lock-fontify-region' do `condition-case' for `quit' too
+;; - Made `lazy-lock-mode' respect the value of `font-lock-inhibit-thing-lock'
+;; - Added `lazy-lock-after-unfontify-buffer'
+;; - Removed `lazy-lock-fontify-after-install' hack
+;; - Made `lazy-lock-fontify-after-scroll' not `set-buffer' to `window-buffer'
+;; - Made `lazy-lock-fontify-after-trigger' not `set-buffer' to `window-buffer'
+;; - Made `lazy-lock-fontify-after-idle' be interruptible (Scott Burson hint)
+;; 2.03--2.04:
+;; - Rewrite for Emacs 19.31 idle timers
+;; - Renamed `buffer-windows' to `get-buffer-window-list'
+;; - Removed `buffer-live-p'
+;; - Made `lazy-lock-defer-after-change' always save `current-buffer'
+;; - Made `lazy-lock-fontify-after-defer' just process buffers
+;; - Made `lazy-lock-install-hooks' add hooks correctly (Kevin Broadey report)
+;; - Made `lazy-lock-install' cope if `lazy-lock-defer-time' is a list
+;; 2.04--2.05:
+;; - Rewrite for Common Lisp macros
+;; - Added `do-while' macro
+;; - Renamed `lazy-lock-let-buffer-state' macro to `save-buffer-state'
+;; - Returned `lazy-lock-fontify-after-install' hack (Darren Hall hint)
+;; - Added `lazy-lock-defer-on-scrolling' functionality (Scott Byer hint)
+;; - Made `lazy-lock-mode' wrap `font-lock-support-mode'
+;; 2.05--2.06:
+;; - Made `lazy-lock-fontify-after-defer' swap correctly (Scott Byer report)
+;; 2.06--2.07:
+;; - Added `lazy-lock-stealth-load' functionality (Rob Hooft hint)
+;; - Made `lazy-lock-unstall' call `lazy-lock-fontify-region' if needed
+;; - Made `lazy-lock-mode' call `lazy-lock-unstall' only if needed
+;; - Made `lazy-lock-defer-after-scroll' do `set-window-redisplay-end-trigger'
+;; - Added `lazy-lock-defer-contextually' functionality
+;; - Added `lazy-lock-defer-on-the-fly' from `lazy-lock-defer-time'
+;; - Renamed `lazy-lock-defer-driven' to `lazy-lock-defer-on-scrolling'
+;; - Removed `lazy-lock-submit-bug-report' and bade farewell
+;; 2.07--2.08:
+;; - Made `lazy-lock-fontify-conservatively' fontify around `window-point'
+;; - Made `save-buffer-state' wrap `inhibit-point-motion-hooks'
+;; - Added Custom support
+;; 2.08--2.09:
+;; - Removed `byte-*' variables from `eval-when-compile' (Erik Naggum hint)
+
 ;;; Code:
 
 (require 'font-lock)
@@ -208,34 +272,47 @@
   ;; We don't do this at the top-level as idle timers are not necessarily used.
   (require 'timer)
   ;; We don't do this at the top-level as we only use non-autoloaded macros.
-  (require 'cl))
-
-;; We use this to preserve or protect things when modifying text properties.
-(defmacro save-buffer-state (varlist &rest body)
-  "Bind variables according to VARLIST and eval BODY restoring buffer state."
-  (` (let* ((,@ (append varlist
-		 '((modified (buffer-modified-p)) (buffer-undo-list t)
-		   (inhibit-read-only t) (inhibit-point-motion-hooks t)
-		   before-change-functions after-change-functions
-		   deactivate-mark buffer-file-name buffer-file-truename))))
-       (,@ body)
-       (when (and (not modified) (buffer-modified-p))
-	 (set-buffer-modified-p nil)))))
-(put 'save-buffer-state 'lisp-indent-function 1)
-
-;; We use this for clarity and speed.  Naughty but nice.
-(defmacro do-while (test &rest body)
-  "(do-while TEST BODY...): eval BODY... and repeat if TEST yields non-nil.
+  (require 'cl)
+  ;;
+  ;; We use this to preserve or protect things when modifying text properties.
+  (defmacro save-buffer-state (varlist &rest body)
+    "Bind variables according to VARLIST and eval BODY restoring buffer state."
+    (` (let* ((,@ (append varlist
+		   '((modified (buffer-modified-p)) (buffer-undo-list t)
+		     (inhibit-read-only t) (inhibit-point-motion-hooks t)
+		     before-change-functions after-change-functions
+		     deactivate-mark buffer-file-name buffer-file-truename))))
+	 (,@ body)
+	 (when (and (not modified) (buffer-modified-p))
+	   (set-buffer-modified-p nil)))))
+  (put 'save-buffer-state 'lisp-indent-function 1)
+  ;;
+  ;; We use this for clarity and speed.  Naughty but nice.
+  (defmacro do-while (test &rest body)
+    "(do-while TEST BODY...): eval BODY... and repeat if TEST yields non-nil.
 The order of execution is thus BODY, TEST, BODY, TEST and so on
 until TEST returns nil."
-  (` (while (progn (,@ body) (, test)))))
-(put 'do-while 'lisp-indent-function (get 'while 'lisp-indent-function))
+    (` (while (progn (,@ body) (, test)))))
+  (put 'do-while 'lisp-indent-function (get 'while 'lisp-indent-function))
+  ;;
+  ;; We use this for clarity and speed.  Borrowed from a future Emacs.
+  (or (fboundp 'with-current-buffer)
+      (defmacro with-current-buffer (buffer &rest body)
+	"Execute the forms in BODY with BUFFER as the current buffer.
+The value returned is the value of the last form in BODY."
+	(` (save-excursion (set-buffer (, buffer)) (,@ body)))))
+  (put 'with-current-buffer 'lisp-indent-function 1)
+  ;;
+  ;; We use this for compatibility with a future Emacs.
+  (or (fboundp 'defcustom)
+      (defmacro defcustom (symbol value doc &rest args) 
+	(` (defvar (, symbol) (, value) (, doc))))))
 
 ;(defun lazy-lock-submit-bug-report ()
 ;  "Submit via mail a bug report on lazy-lock.el."
 ;  (interactive)
 ;  (let ((reporter-prompt-for-summary-p t))
-;    (reporter-submit-bug-report "simon@gnu.ai.mit.edu" "lazy-lock 2.08"
+;    (reporter-submit-bug-report "simon@gnu.ai.mit.edu" "lazy-lock 2.08.01"
 ;     '(lazy-lock-minimum-size lazy-lock-defer-on-the-fly
 ;       lazy-lock-defer-on-scrolling lazy-lock-defer-contextually
 ;       lazy-lock-defer-time lazy-lock-stealth-time
@@ -256,11 +333,6 @@ until TEST returns nil."
 
 ;; User Variables:
 
-(defgroup lazy-lock nil
-  "Font Lock support mode to fontify lazily."
-  :link '(custom-manual "(emacs)Support Modes")
-  :group 'font-lock)
-
 (defcustom lazy-lock-minimum-size (* 25 1024)
   "*Minimum size of a buffer for demand-driven fontification.
 On-demand fontification occurs if the buffer size is greater than this value.
@@ -392,7 +464,7 @@ See also `lazy-lock-stealth-nice'."
   :type (if (condition-case nil (load-average) (error))
 	    '(choice (const :tag "never" nil)
 		     (integer :tag "load"))
-	  '(const :tag "never" nil))
+	  '(const :format "%t: unsupported\n" nil))
   :group 'lazy-lock)
 
 (defcustom lazy-lock-stealth-nice